53417989 has 2 divisors, whose sum is σ = 53417990. Its totient is φ = 53417988.

The previous prime is 53417933. The next prime is 53417993. The reversal of 53417989 is 98971435.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51595489 + 1822500 = 7183^2 + 1350^2 .

It is a cyclic number.

It is not a de Polignac number, because 53417989 - 2¹⁷ = 53286917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53417909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26708994 + 26708995.

It is an arithmetic number, because the mean of its divisors is an integer number (26708995).

Almost surely, 2^53417989 is an apocalyptic number.

It is an amenable number.

53417989 is a deficient number, since it is larger than the sum of its proper divisors (1).

53417989 is an equidigital number, since it uses as much as digits as its factorization.

53417989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 46.

The square root of 53417989 is about 7308.7611125279. The cubic root of 53417989 is about 376.6134663510.

The spelling of 53417989 in words is "fifty-three million, four hundred seventeen thousand, nine hundred eighty-nine".